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44 lines
1.4 KiB
44 lines
1.4 KiB
/* |
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Copyright 2018 The Knative Authors |
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Licensed under the Apache License, Version 2.0 (the "License"); |
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you may not use this file except in compliance with the License. |
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You may obtain a copy of the License at |
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http://www.apache.org/licenses/LICENSE-2.0 |
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Unless required by applicable law or agreed to in writing, software |
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distributed under the License is distributed on an "AS IS" BASIS, |
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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See the License for the specific language governing permissions and |
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limitations under the License. |
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*/ |
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package duck |
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import ( |
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"k8s.io/apimachinery/pkg/runtime/schema" |
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"k8s.io/client-go/tools/cache" |
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) |
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// EnqueueInformerFactory implements InformerFactory by delegating to another |
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// InformerFactory, but attaching a ResourceEventHandler to the informer. |
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type EnqueueInformerFactory struct { |
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Delegate InformerFactory |
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EventHandler cache.ResourceEventHandler |
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} |
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// Check that EnqueueInformerFactory implements InformerFactory. |
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var _ InformerFactory = (*EnqueueInformerFactory)(nil) |
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// Get implements InformerFactory. |
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func (cif *EnqueueInformerFactory) Get(gvr schema.GroupVersionResource) (cache.SharedIndexInformer, cache.GenericLister, error) { |
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inf, lister, err := cif.Delegate.Get(gvr) |
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if err != nil { |
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return nil, nil, err |
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} |
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// If there is an informer, attach our event handler. |
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inf.AddEventHandler(cif.EventHandler) |
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return inf, lister, nil |
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}
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